临床PTCA术中球囊反复充盈时体表心电图ST段的改变  

ST SEGMENT CHANGES ON BODY SURFACE ECG DURING REPEATED BALLOON INFLATION IN CLINICAL PROCEDURE OF PTCA

作　　者：蒋宝琦[1] 王伟民[1] 于江宏 陈步星[1] 吴淳[1] 刘喜荣 

机构地区：[1]北京医科大学人民医院心内科,100044

出　　处：《北京医科大学学报》1997年第5期456-458,共3页Journal of Peking University(Health Sciences)

摘　　要：目的：了解经皮腔内冠状动脉成形术（PTCA）中人类心脏能否被预适应。方法：分析冠心病患者行PTCA术治疗25例临床资料，并比较第1、2两次球囊充盈扩张时体表心电图ST段变化。结果：尽管第2次球囊扩张时限比第1次长10，4S（P＜0.05），但球囊第2次充盈时心电图ST段变化比第1次的小2mm（P＜0．05）。结论：PTCA术中球囊充盈扩张所致短暂缺血可能使心脏对缺血的耐受性增强。Objective: To observe whether there were ischemic preconditioning during percutaneous translurninal coronary angioplasty procedures in human hearts. Methods: To analyse clinical data of 25 patients with coronary artery disease during PTCA procedures for comparing ST segment changes on body surface ECG between the first and second bal1oon inflations. Results: ST segment changes on ECG during the second balloon inflation was fewer than those during the first one by 2 mm (P < 0. 05 ), even though the balloon inflation time during the second one was longer than that during the first one by 10. 4 s (P < 0. 05 ).Conclusion:Transient myocardial ischemia during the balloon inflation on PTCA procedures made the heart enhance its ability to tolerate myocardial ischemia.

关 键 词：血管成形术 PTCA 心肌缺血 心电图 

分 类 号：R654.2[医药卫生—外科学]